Oracle查询当前某条数据的前一行数据与后一行数据
如要查询Staffno是6-1102的前一条记录
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select * from staff where staff_no=(select c.p from (select staff_no,lag(staff_no,1,0) over (order by staff_no) as p from staff) c where c.staff_no='6-1102')
结果：
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STAFF_NO STAFF_NAME SEX
---------- -------------------- --- -
6-1076 梁柄聪 男 ??
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1 rows selected
如要查询其后一条记录
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?
select * from staff where staff_no=(select c.n from (select staff_no,lead(staff_no,1,0) over (order by staff_no) as n from staff) c where c.staff_no='6-1102')
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结果：
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?
STAFF_NO STAFF_NAME SEX
---------- -------------------- --- -
6-1103 余志伟 男
?
1 rows selected
